Master Sgt. Roy E. Puchalski pitches the Battery Cell Extraction Tool to Air Force and industry leaders listened to pitches during the Spark Tank 2020 at the Air Force Association's Air Warfare Symposium, in Orlando, Fla., Feb. 28, 2020. The Battery Cell Extraction Tool aids in the removal of battery cells from a C-17 storage battery. The three-day symposium is a professional development forum that offers the opportunity for Department of Defense personnel to participate in forums, speeches, seminars and workshops with defense industry professionals. (U.S. Air Force photo by Staff Sgt. James Richardson)
70.0-200.0 mm f/2.8
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